<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script type="text/javascript">
			var a = 10;b=20;c=30
			++a;
			a++;
			e = ++a + (++b) + (c++) + a++;
			console.log(e)
			
		</script>
	</head>
	<body>
		
	</body>
</html>
